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| 陕西省碳足迹时空变化研究 | |
| 引用本文： | 赵先贵,马彩虹,肖玲,纪芙蓉.陕西省碳足迹时空变化研究[J].地理科学,2013,33(12):1537-1542. |
| 作者姓名： | 赵先贵 马彩虹 肖玲 纪芙蓉 |
| 作者单位： | 1.陕西师范大学旅游与环境学院,陕西 西安 710062 2.陕西理工学院历史文化与旅游学院,陕西 汉中 723001 |
| 基金项目： | 陕西省软科学研究计划项目(No;2012KRM48)、陕西省社会科学基金项目(No.11E056)、黄土高原土壤侵蚀与旱地农业国家重点实验室基金(No.10501-1214)资助 |
| 摘 要： | 为了解近年来陕西省碳足迹的状况,采用《2006年IPCC国家温室气体清单指南》和中国《省级温室气体编制指南》推荐的方法测算了陕西省及其各市的碳足迹。结论如下：1995~2009年,陕西省碳足迹从4 129.38×104t上升到22 460.23×104t,增加了443.91%。从空间上全省碳足迹可分为3类：陕南始终为负值;陕北和渭南市较高;关中除渭南市以外的地区较低。14 a间全省人均碳足迹由1.18 t增加到5.95 t;各市人均碳足迹,陕北较高,关中较低,陕南为负值。全省碳足迹密度从2.00 t/hm2增高到10.90 t/hm2。陕西省的人均和单位面积的碳足迹远高于应对全球气候变化的目标,但空间上差异很大。以2009年为例,全省人均碳足迹是应对全球气候变化目标的2.98倍,而陕北则超过10倍,高于美国;关中为1.29~4.57倍。全省2009年碳足迹密度是应对全球气候变化目标的4.89倍;渭南、咸阳、西安3市高达9.63~16.95倍;榆林、铜川、延安和宝鸡4市为3.54~7.10倍;陕南植被的固碳作用消除了当地的碳排放外,还有剩余碳汇,但尚不能抵消陕北及关中的较高的碳足迹,因此总体看,对气候变化有负面影响,陕西的碳减排任务仍较重。 |
| 关 键 词： | 碳足迹 时空变化 气候变化 陕西省 |
| 收稿时间： | 2013-02-28 |
| 修稿时间： | 2013-06-08 |
Spatio-temporal Changes of Carbon Footprint in Shaanxi Province |
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| Xian-gui ZHAO,Cai-hong MA,Ling XIAO,Fu-rong JI.Spatio-temporal Changes of Carbon Footprint in Shaanxi Province[J].Scientia Geographica Sinica,2013,33(12):1537-1542. | |
| Authors: | Xian-gui ZHAO Cai-hong MA Ling XIAO Fu-rong JI |
| Institution: | 1.College of Tourism and Environment, Shaanxi Normal University, Xi′an, Shaanxi 10062,China 2.College of History and Tourism, Shaanxi University of Technology, Hanzhong, Shaanxi 723001,China |
| Abstract: | Global warming caused by carbon emissions would cause severe natural environment and social problems. Extensive work has been done in the area of carbon footprint and quite a few researches about Carbon footprint has been reported home and abroad as well as some improvements. However, there are also some shortcomings such as mainly focusing on carbon emissions, whereas, less involving in carbon sequestration. Shaanxi Province is an important province of western China, in recent years its economy has developed rapidly, but the carbon footprint of this province has not been reported. In this article, based on the method that recommended by "the 2006 IPCC Guidelines for National Greenhouse Gas Inventories" and Chinese" Guidelines for Provincial Greenhouse Gas Inventories", the study on spatio-temporal changes of carbon footprint is performed in Shaanxi Province. Results of the study show that during the period from 1995 to 2011,Shaanxi′s carbon footprint increased from 4 129.38×104t to 22 460.23×104t, or rose by 443.91%. The carbon footprints of 10 cities in Shaanxi Province can be divided into three types. It is always a carbon sink in southern Shaanxi, higher in northern Shaanxi and Weinan City, and yet lower in Guanzhong region excluding Weinan City. The carbon footprint per capita grew from 1.18 t to 5.95 t in the past 14 years in Shaanxi Province. Concerning the carbon footprint per capita of cities in Shaanxi Province, it is higher in northern Shaanxi, lower in Guanzhong regions, and negative in southern Shaanxi. For example, it ranges as Yulin City,Yan'an City, Weinan City, Tongchuan City, Xianyang City, Baoji City, Xi'an City, Hanzhong City, Ankang City and Shangluo City in descending order according to the carbon footprint per capita in 2009. As regards the carbon footprint per unit area, it increased from 2.00 t/hm2 to 10.90 t/hm2 in the whole province. Besides, the carbon footprint per capita and per unit area in Shaanxi Province is higher than the target which set for control of global climate change, whereas widely different in space distribution. For instance, the carbon footprint per capita is 2.98 times higher than the target set for control of global climate change in Shaanxi Province in 2009, and furthermore the data in northern Shaanxi is more than 10 times, which is higher than that of the United States, yet 1.29-4.57 times in Guanzhong region. In 2009, the carbon footprint per unit area in Shaanxi Province is 4.98 times higher than the target set for control of global climate change. In particular, it is up to 9.63-16.95 times in Weinan City, Xianyang City and Xi'an City, and yet 3.45-7.10 times in Yulin City, Tongchuan City, Yanan City and Baoji City. Vegetation carbon sequestration is strong in southern Shaanxi, so there is a surplus of carbon sinks besides eliminating the local carbon emissions. Due to the high carbon footprint in Guanzhong regions and northern Shaanxi, it plays a negative impact on climate change, leaving a tough task of carbon emission reduction in Shaanxi Province. |
| Keywords: | carbon footprint spatio-temporal changes climate change Shaanxi Province |
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